Automatic siphon breaker for flush valves



' Nan-24, 1942. I .1. J. GOODRIE 2,303,044

AUTOMATIC SIPHON BREAKER FOR FLUSH VALVES Fiiea July 19, 1941 m-mr I 14g I v Zia/6222 02? LIOSe vJQa/ra e. QM

Patented Nov. 24, 1942 um'reo STAT- s PATENT OFFICE "AUTOMATIC VSQIPHONBREAKER FOR Y FLUSH VALVES V I Joseph J. Goodrie, Chicago, 111.,assignor of' twenty-five per cent to Albert J ."Fihe'; Chicago,

Application July v 119, 1941, Serial No. 403,193

. I Claims.

This invention relates to an improved automatic siphon breaker for;flush valves, and the present invention constitutes an improvement overmy prior patents onsimilar devices, one entitled Unitary flush valveconnection, No. 2,134,182, granted October 25, 1938, and the otherentitled ,Fixed vacuum breakers for flush valves,

No. 2,151,200, granted March 21,1939. I V

One of the important objects of this invention istoprovide means forbreaking the siphon or vacuum which is sometimes created in watersystems of buildings, particularly taller buildings when the waterpressure is shut ad or reduced andwhich would ordinarily have a tendencyto carry flush ,water from toilet bowls or the like back into thesystem. Another object of, the invention is to provide a device that canbe used interchangeablyzon all types of flush valves for toilet bowls,laboratoryequipment, hospital apparatus or the like.-

It is known to be trueespecially in the larger buildings that, when themain water supply is shut off for some reason or another, a suctionorvacuum is created when a faucet, valve or the- Still another importantobject-of the invention is to have no moving parts therein which maystick throughdisuse or which may have dirt collect thus causing themovement to stop.

Another and still further object of the invention includes the provisionof means whereby the flow of incoming water to the toilet bowl or othersimilar equipment will always be under control. In installations of thissort, it often happens that the water from toilet bowls or similarequipment such as various apparatus in hospitals, laboratories and thelikeis drawn upwardly and outwardly therefrom back into the main waterline, this occurring quite frequently when the water supply is shut offfor some reason or another, whereupon the opening of a faucet or valveat some lower level will immediately create a suction or back pressure,and unless some means exists in the inlet pipe for breaking such avacuum,

the contaminated waste water from the toilet 65 One Side adjacent theupper P thereof, and

line 3-3 of Figure 2, looking in the direction bowl or other apparatusis drawn back into the main supply line whence it is then delivered tovother outlets and may inadvertently be used for drinking or otherpurposes, thereby constituting a serious detriment to health.

Other and further important objects of the invention will be apparentfrom the disclosures in the accompanying drawing and followingspecification. 7

The invention, in a preferred form, is illustratedinthe drawing andhereinafter more fully described. 7 a

Inthedrawing; Q U

Figure 1 is a top plan view of the improved automatic siphon breaker ofthisinvention,

Figure 2 ,is a sectional view takenon the line 22 of Figure 1, showingthe interior construction of the device. I

Figure 3 is a horizontal section taken o-nthe indicated.

, Figure 4 is a partial section and parts being broken away taken on thebroken line 4-4 of Figure 2, looking in the direction indicated.

Figure 5 isa side view of the improved automatic siphon breaker forflush valves of this invention.

, As shown in the drawing: Y

The reference numeral lllindicates generally the casing of the improvedautomatic siphon breaker of this invention, the same being provided atits top with an attachment l2 whereby the device may be connected into apipe line or the like, and the body I 0' is screw-threaded at its lowerend as shown at 44 for a similar connection at this point. I

The casing ill has an inside element l6 which forms an inner wall anddivides the easing into two ,parts, each comprising a passageway forwater. i l

The central passageway includes a restricted pipe or nozzle element I8which is screw-threadedly mounted in position in a ledge 20 integralwiththe' casing l0 andwhich is shapedas shown to provide a constrictedstream when water flows therethrough.

Just below the ledge or element 20, there is fashioned. in the casingI!) an opening or slot 22 which is for the purpose of allowing incomingvatmospheric air for siphon breaking action.

A plug 24 is removably mounted below the element I8 and also has arestricted passageway therethrough as best illustrated in Figure 2.

The casing I0 is provided with an opening at this is normally closed bymeans of a plug 26 which is screw-threadedly mounted therein by anadjusting screw or the like 28. This screw is held in desired positionby means of a lock nut 30 and a cap 32 is provided over the assemblagein order to keep out dirt or other foreign material. Adjacent the innerend of the adjusting screw 28 is a valve element 34 hingedly mounted ona pin or the like 36 and adapted to operate against a seat 38 formed inthe body of the casing H].

In operation, the device is placed in position below a flush valve andabove an ordinary toilet bowl or in some similar relationship with a orother similar apparatus. In operation, water enters the top of thedevice, andsnie er-it passes through the restricted passage 1 8 and theelement 24. The main operation of the water opens the valve 34 and flowsthrough the passageway between the walls lll and I6 of the casingproviding a desirable flushing action for the toilet bowl or similardevice. The set screw 28 can be so adjusted that the valve 34 will opena desired amount, and the plugs l8 and 24 with the passagewaytherethroughcan be removed, and other plugs with differently sized orshaped passageways substituted depending upon'the particular type ofsystem with which the device is to be used such as, for example, a highpressure or a low pressure system for flush valves or similar devices.

N0 splashing or other undesirable excretion of water will take placethrough the slot 22 because the nozzle I8 is so shaped and situated thatthis is rendered practically impossible.

On the other hand,- if a; vacuum or suction is created in the feed pipeleading to the device, this suction or vacuum will be immediately brokenby the entry of atmospheric air throug the slot 22, and there willconsequently be no siphoning action of water from the toilet bowl orsimilar deviceup through the hush valve and into the partsandconsequently', can, under practically no circumstances; ever get outor order. Furthermore; the device can be readily adjusted or changed toaccommodate inany'and various types offlush bowls and flushing systemswith-a very small expenditure or time and labor andwith practically noextra parts or substituted parts.

I am awarethat many changes may be made and numerous details ofconstruction varied throughout a wide range without departing from theprinciples of this invention, and I, therefore;- do not purpose limitingthe patent granted hereon otherwise than as necessitated by the-priorart.

I claim as my invention 1-. An automatic siphon-breaker for flushvalve.'

and toilet bowls comprising a casing; an extraneous passageway for aportion of the water stream around the central portionof the casing, avalved port communicating with such" extraneous pas- 135m ommunicatingwith such extraneous D sagewfa'y, a hinged valve mounted over the port,

an adjustable stop in juxtaposition with the valve,

andnozzle means in the central part of the casing 'for'pfdvidin'g' arestricted flow of the remainder of the water stream through saidcentral part together with a slot open to the atmosphere adjacentthenozzle.

3, An automatic siphon breaker for flush valves and toilet bowlscomprising a casing, an extraneoiisiiassageway fer 'a portion of thewater stream around the 'cer'it'ra'l portion of the casing, a valvedport- 'cofiiiiiiriic'ating vvith such extraneous passagewayga-hifigedvalve-"mounted ov'e'r the port, an adjustable stop in juxtaposition withthe valve, ahdnezzler'hea'n's in th'e central-part of the casing "forproviding a restricted flow of the remainder of the waterstre'amth-foiigh'said central part-together with a slot open ti the atmosphereadjacent the nozzle, said' slet biiig positioned in the easing and"abia've the iow'ereiizibr the nozzle.

automatic siphon breaker for flush valves and toilet bowls comprising aca ing. an extraneous'pa'ssageway fol 'a'po'i'ti'o'r'i of the Waterstream around the cntrai portion or the casing, a valved portcommunicating with siieh extraneous passageway, 'a hinged valvefriounted over the port, an adjustable step in juxtaposition "with thevalve; and nozz'le means "the central part "of the casihgiof-pfviding-arestricted new 6f the remainder of thewat'ef"streamthroiigh saidoe'ntralbalit together-with a-slot 'o'pen'to the atmosphere adjacent thenozzle, s'ai'd slot being positione d in the caihg ahd above thejlowrend-or th'e'nozz1, and a further ifstriet'ed passa eway mea s in thecasing below the slot and below the 'fir's't ribzzle;

5.- autoinat-i sip on breaker-for flu'sh valves .and toilet bowlscomprisih'g a-casirigan extraneous passageway for a portibnbf the waterstream around't he central portion "or the casing', a valved portcommunicating with such extraneous as- .s'ag'eway, a hihg'edvalve-ihoilhted aver'th port,

an adjustable stop in juxtapos'itioh "with the valve, and nozzle meansin the bentral part of the casing forfproviding a restricted flow of theremainder of the-waterstream throu'gh 5516. central part togetherw'itn as'iot'epenio the atmosphere adjaoe'l'lt the h 6 2216, said "Slot 1 b'ihgbOSitioned in theca'sing andabove the lower-end of the nozzle, andaiur'the'r restricted passageway means in the casing below the slotandbelow the first nozzle, said further meanseompri's ng a removableplug having 'a central passageway Y therethrou'gh, said passageway beingin line with the passageway in' the first'ena'nied nozzle.

iosfnpnuxooobarn.

